Implement the type Filter<T, Predicate> takes an Array T, primitive type or union primitive type Predicate and returns an Array include the elements of Predicate.
import type { Equal, Expect } from '@type-challenges/utils'
type Falsy = false | 0 | '' | null | undefined
type cases = [
Expect<Equal<Filter<[0, 1, 2], 2>, [2]>>,
Expect<Equal<Filter<[0, 1, 2], 0 | 1>, [0, 1]>>,
Expect<Equal<Filter<[0, 1, 2], Falsy>, [0]>>,
]